Finding the Fourth Proportional to 114,438.05, 157,918.19 and 63,447.81
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Solution
The fourth proportional to 114,438.05, 157,918.19 and 63,447.81 is: 87,554.47
Step by Step Solution
- Step 1: Write the proportion equation
114,438.05 : 157,918.19 = 63,447.81 : x - Step 2: Convert to fraction form
114,438.05/157,918.19 = 63,447.81/x - Step 3: Cross multiply
114,438.05x = 157,918.19 × 63,447.81 - Step 4: Simplify right side
114,438.05x = 10,019,563,314.66 - Step 5: Solve for x
x = 10,019,563,314.66/114,438.05 - Step 6: Final answer
x = 87,554.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.